To the Editor: We report the case of an 82-year-old woman who presented to the hospital with the acute onset of “FAST” (face, arms, speech) symptoms, including left-sided facial weakness, left-sided hemiparesis, and dysarthria. On examination, the patient was also found to have left homonymous hemianopia and left-sided hemi-neglect, with an NIHSS score of 17/32 and a GCS of 13/15. Head CT scan confirmed the diagnosis of ischemic infarct involving the right middle cerebral artery and resulting in a posterior parietal lesion. The patient underwent alteplase thrombolysis without success, despite some initial signs of functional recovery in the 3 days after the stroke. About 6 weeks later, the patient started complaining that she believed her left arm was not her own, but instead belonged to her brother, who had been present with her when she had the stroke. She said that her “brother’s arm” did not do what she wanted and that this was causing her significant distress. These symptoms spontaneously resolved within 3 weeks.